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Industry Adhesives - Water-based Adhesives


Another, less popular, but a dynamic form of industrial adhesive is the water-based family of adhesives. These adhesives are supplied to manufacturers and distributors as either a pre-mixed solution or as formulated dry powders that must be mixed with water in order to activate its adhesive quality. Water-based adhesives are generally applied as emulsion mixes that are converted to adhesive materials when their water content has evaporated.

Water-based adhesives may not be as popular as hot melt adhesives in most industries, but they do have a wide variety of applications that makes them just as reliable and trustworthy as their more popular counterparts. Let’s take a brief look at the various kinds of water-based adhesives available on the market.

Starch/Dextrin Adhesives: these water-based adhesives contain a starch base that results in a more flexible, but solid bond. These are commonly used for paper applications like bookbinding.

Protein Adhesives: derived from proteins found in animal milk that is used to make casein glue. Used for applications that require a fast set time, like packaging in the beer and wine industry.

Resin/Polymer Acetate Adhesives: made from emulsion polymers like vinyl and ethylene vinyl acetate. These emulsions produce a bright white mixture that produces a clear, flexible bond when dry, making it ideal for the paper, woodworking, and plastic industries.

Latex Adhesives: made from emulsified elastomers (rubbers). Depending on the specific formulation, these adhesives form either solid bond, or a more flexible bond that is used in applications like stamp and envelope production, and for binding fabrics and wood.

Several industries regularly use water-based adhesives for their manufacturing and distribution applications. The paper industry utilizes such adhesives for bookbinding and for binding paper towel rolls, while industries like beverage bottling companies use these adhesives for packaging cases of beer and fixing company labels to bottles that are regularly exposed to some degree of moisture.

There are several advantages to using water-based adhesives. To begin with, water-based adhesives service a huge variety of industries because of their ability to bind to a wide range of substrates. They also remain stable in high levels of humidity and across a wide temperature range, and form extremely strong and durable bonds. Along with their flexibility and economic practicality, water-based adhesives can also be dispensed using several methods, including spray and roll dispersion technology.

Depending on what industry you are in and what applications you are handling, you will want to do a little bit of research into the various types of hot melt and water-based adhesives to know exactly what you are looking for. Remember that while hot melt adhesives are the more popular, water-based adhesives offer excellent adhesive qualities and service a wide range of temperatures and are more resistant to moisture.